Gander or Oracle or anyone else.....

[Nostradamus]

You do not want to drive it. It is a traffic mess.

Take the amtrak down to penn station and then the subway to the stadium. The only problem is the amtrak only leaves a couple times a day and takes 4 hrs to get to NYC from Saratoga Springs.

Greyhound is a little cheaper but it sucks. It does leave a bunch of times a day though.

You can also take the LIRR from Penn Station to Floral Park right next to belmont park, or there is a train that goes directly to Belmont, which is really the best track in the world.